Bring 1/3 cup sweetened condensed milk (about 100 ml) and 1/3 cup water (about 100 ml) to a boil. Pour the hot mixture over the avocado and blend until smooth.

Combine the coconut milk and sugar in a saucepan and bring to a boil. Dissolve the tapioca starch in a little water, then add it to the coconut milk. Cook until it boils again, then remove from heat.